what happened in russia is going to be critical for tamerlan. the second part is the internal family dynamic here. the role of the mother, how other members of the family saw what was happening and what they did -- >> the mother denies everything. >> well, she does. she also based on what we've seen from interviews was very, very devout and went on an extremist approach toward religion and toward the united states. clearly the relationship with her and tamerlan, the older brother, was important. and we're going to need to delve into that. >> you think she was an american hater? >> you know -- >> to use common sense here. if you're going to kill a bunch of people, you probably hate them. >> i'm not saying she was involved in the conspiracy, chris. based on what she said in her public statements, she played a fascinating role in influencing her, at least her older son, and possibly her younger son. that, we have to be careful here, but what i've seen she's said publicly is pretty disturbing. >> okay. thank you so much, gentlemen. this is tricky. w